Thank you so much for your feedback! I greatly appreciate it.
I thought about adding actual words at first, but I wanted the game to have enemies that varied from 2-3 letters to enemies that had 10-15 letters and that spawn minions nearing the end of the game, so letters wouldn't work there, but I do agree that it would've probably made it more satisfying to have letters.
Anyways, thank you so much for the feedback; I will keep it in mind!